feat: support luarocks/rocks.nvim

[mrcjkb]

Hey :wave:

Summary

This PR is part of a push to get neovim plugins on LuaRocks.

See also:

• rocks.nvim, a new luarocks-based plugin manager.
• this blog post.

Things done:

• Add a workflow that publishes tags to luarocks.org when a tag or release is pushed.

Notes:

[!IMPORTANT]

• For the luarocks workflow to work, someone with a luarocks.org account will have to add their API key to this repo's GitHub actions secrets.

• Tagged releases are installed locally and then published to luarocks.org.
  • If you push tags from a local checkout, the workflow is triggered automatically.
  • If you use GitHub releases to create tags, you may need to add a PA token for the workflow to be triggered automatically.
• Due to a shortcoming in LuaRocks (https://github.com/luarocks/luarocks-site/issues/188), the neovim and/or vim labels have to be added to the LuaRocks package manually (after the first upload), for this plugin to show up in https://luarocks.org/labels/neovim or https://luarocks.org/labels/vim, respectively.

See also this guide.

[Issafalcon]

Thanks for this @mrcjkb ! I'll look at getting the API key sorted when I can. LuaRocks and the rocks.nvim plugin look interesting! I'm inclined to agree with that Unix philosophy outlined, so might have to switch to that package management!

[Issafalcon]

Hi @mrcjkb. I'm just getting round to addressing issues raised against my plugins. Life changes have meant I've had to move these side projects of mine to lower priority, but just posting to say it's still on my radar to fix, and I'll get back to it as soon as I can.